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Mathematical simulation and experimental study of direct-contact membrane distillation
Authors: Zhaochun Wang1, Chao Yu1, Yuelian Peng1,*, Zhehao Li2
Units: 1Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, P. R. China 2Changchun Gold Research Institute, 130012, P. R. China, Tel 86-431-85529839, Fax 86-431-85518644, Email: zhehaoli888@sohu.com
KeyWords: Direct-contact membrane distillation (DCMD); transfer model; flux; thermal efficiency.
ClassificationCode:TQ028.8
year,volume(issue):pagination: 2016,36(4):67-74

Abstract:
 The effects of operating conditions (feeding temperature, hot and cold side flow) on flux and thermal efficiency was performed. Heat and mass transfer model of direct-contact membrane distillation (DCMD) based on hollow fiber membrane was use to analyze the mechanism. The results showed that the flux increased with the increase of feed temperature, hot and cold side flow, which greatly increased the vapor pressure difference across membrane and mass transfer driving force, but had limit effect on mass transfer coefficient. The increase of feed temperature and hot side flow and the decrease of cold side flow helped to improve the thermal efficiency for higher average membrane temperature.

Funds:
国家自然科学基金的支持(21576004)

AuthorIntro:
第一作者简介:王兆春,1982年,女,山东蓬莱人,硕士研究生,蓬莱市北沟经济发展服务中心工作,膜蒸馏方向,86885709@qq.com.

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